Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers.
History

Wed, 03 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Title Uninitialized Buffer Disclosure via HTTP POST on Undefined Paths in Mercusys AC12G Router

Wed, 03 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title Uninitialized Buffer Disclosure via HTTP POST on Undefined Paths in Mercusys AC12G Router
Weaknesses CWE-125
CWE-200
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
Description Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-03T18:36:37.518Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36613

cve-icon Vulnrichment

Updated: 2026-06-03T18:36:31.620Z

cve-icon NVD

Status : Received

Published: 2026-06-03T18:16:22.617

Modified: 2026-06-03T19:16:33.733

Link: CVE-2026-36613

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-03T20:30:36Z